Machine for finishing springs



june 3 1924. l 1,496,559

F. H. SLEEPER MACHINE FOR FINISHING SPRINGS Filed May s, 1922 4 shees-sheet 1 June 1924. 1,496,559

F. H. SLEEPER MACHINE FOR FINISHING SPRINGS Filed May s, 1922 4 sheets-Sheetl 2 June 3, 1924. 1,496,559

F. H. SLEEFER MACHINE FOR FINISHIING SPRINGS Filed May 5, 1922 4 Shee'sTSheet 5 F. H. lSLEEFER MACHEINE FOR FINISHING SPRINGS Filed May 5, 1922 4 sheets-sheet 4 B0 l l r 7S al \S a2. isil- ITwcTftov *Py-hk H. Sharm" Bl.' CLDfa-rvwu Patented .inne 3, i924.

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FRANK" n. signeren, on' Woncnsrnx'n,,Massacrrlrsnrrs Asslenon faosrirlnrnnla HARTLEY, rnc.,y or@ WORCESTER, isrnssaonnsnfr'rs, A comaonnmron" oriii/Assa- CH'U'S'LJPS.

Application med May 3,

To all whom z5 may concer/n Be it known that LYFRANK` H. SLEEPER, a citizen of the Dominion of` Canada, re siding at lNorcester, in the county of forces-- ter and State of lizlassachnsetts, have invented a new and usefullifachine- .for Finishing Springs, of WhichV the followingvis a specification. ,i

This inventionrelates to a machine for conducting springs automatically into.y registration with a number of mechanisms for securing their ends so as tojit them` for the market, the .principal operation beingl` to knot or coil their ends.

*The* invention is capable of use on. springs ofv various kinds-bu t it is particularly adapted for knotting the two ends double conical bed or cushion-v springs and l have shown it as used' for that particular purpose. Theinventioninvolves the use of aV pair of carriers, if both endsof the spring arev to be operated vupon, one for takingthe springs from afeeder or from the ceiling machine, locating them properly, bringing them into the proper position with respect to` a, knetter, knotting the ends and disl charfi'ngthe springs, and theotherubeing arranged to receive the springs from the first named carrier and performing the same operations uponA ittofi'nish the `opposite end and discharge the finished product. The invention, as shovvn, also involves means forronipressing the springs -linall57 Vbefore they" are discharged from the second car; rier', means for transferring the springs from one ,arrier to the other, means for interi-iii'ttentlv rotating both` carriers and holdingthein When stoppedV in proper position fortht` performance of the several operations. and means for` timingwallY the above mentioned parts so as to secure accurate results. The location ofthe several iustijumentalities `for operation on the springs in certain relations to each other is also a feature' ofthe invention. Y

Additional objects and advantages of the invention; will appear hereinafter. l

Reference is to be had to the accompany'- ing` drawings, inivhi'ch 4 Fig. l is a front elevation of a machine constructed in accordance With this invern tion for finishing the ends ofl the conica-l fnrnitiue'or bed springs; i

Fig. 2 is an enlarged 'planof the means.

for insuring the setting ofthe spring back BACHINE, FOR FINISHIN G SPRINGS;

1922. semi no. 558,260.

on the carrier head at the beginning of the ,operation;..

Fig-.f3 is a sectionalview on the line :35.-3 of. Figi, lookingin the. direction ofthe arrows andshoWingthe means. for turning thesprings to V..the-..pro`per.position on the headsjforlocatingthem sothat they can be operated upon'byth'e.knotter;; r

Fig. 4 is. side'. elevation ofone offthe knotters lookingrat' iton; an .incline as indicatedby the lined-4in Fig. l;

Fig-, 5 is an. opposite side view of the knetter, looking; in thel oppositedirection as indicated bytheV lineVV 5TH-59h11 VFigur; Fig 6. is a similar vieivI of 'tl'ieiknotten enlarged andpartly in section, showing infairotlierposition.;

Fig.l 7. is a bottoni planofl'the knetter gfnide foireceivi-ngfthe.end'of the spring; ;Fig. 8'- is an inclined plan as'indicated bj the line 8-8 of 1, f

Figl- 9- is la plan on th'e'line 9-'-9 offFig. 1,1and

Fig. 10 is a .front vievvof the spring conipiessingdevice in a different position from thatshownin. Fig. l.

I have shown the machine as comprising a f largefi'lat' cast.. frame 9. mounted on a base 10 WliiclralsoY constitutes the base of a ceiling machine Il,- only the end of Ywhich is-fshoxvn. This .ceiling.machine .can he driven in. anvdesired Way and is provided with any ofthe usual .typesy ofi. mechanism for coiling'. a Wire and producing a `double conical hedor cushion spring or,V in fact, any other kind. It `is provided .with a drivinglshaftlQ from which its parts are operatedandi this shaftV in the present machine entends bevond the'endof thecoiler and snp'ported by bearings in brackets 13k on the base 10'l It' constitutes the power shaft for the present machine 4and may be driven as stated' in any desired Way.

Sprang @modera- The .shaft rl2 is provided? with'4 a Geneva motion or any equivalent means for prov ducing an intermittent rotation in aparallel shaft 18. I have shown this Geneva motion in the forni of a double arm 14.011 the shaft l2' having a pi-n l5 ou it parallel with the shaft and rotating, yof course, constantlv.' This pin enterslone of a, phi!I ralitv of slots l@ rin a Geneva rvheel l? andv rotates this Wheel" a part, preferably one sixth, of a revolution for each revolution of the shaft 12 as is readily understood. This wheel 17 is fixed on the shaft 18 which is provided with bevel gears 19 at its opposite ends and is supported on brackets 2O carried by the base 10. These bevel gears 19 operate bevel gears 21 on two vertical shafts 22 carried by brackets on the frame 9. Each of the shafts 22, by means of bevel gears 23, rotates intermittently a shaft 24.

On each shaft 24 is a disc 25 having six recesses around its circumference through which pass chordal pins 27 on which are pivoted six radiating studs 28 carrying spring holding heads 29. These discs with their heads constitute two carriers lfor the springs. Each ofthe heads is provided with a conical base 30 and a spindle 31 for receiving one of the springs S. Projecting out at the front from each of the studs 28 is an arm 32 which' is connected with the hub 33 of the disc 25 by a spring 34. This pulls the arm inwardly against an adjustable stop 35 in the form of a screw carried by the hub. This construction yieldingly holds the head 29 in exactly radial position and holds all the members in the same plane, yet they are capable of individually yielding to move inwardly to the rear toward the frame 9 as indicated in F ig. 4.

Each of these heads 29 is hollow for receiving the stud 28 and is capable of slid.- ing readily on it. A radial spring 36 is employed for each one to hold the head normally back in its innermost position in which it is stopped bythe end of the stud 28 engaging the bottoni of thefhole in thev head in which the stud is located.

It will be understood from what has been said that each carrier, consisting of a disc 25 and the studs and other parts supported by it, has an intermittent rotation, in this case turning of a revolution at a time. At each stop a pair of opposite studs 28 are left in horizontal position where one of them registers with the point on the wire coiling machine 11, at which the spring is made so that the spring is coiled in said machine and delivered on one of the heads 29. The means for coiling it is not shown herein as it does not constitute a part of this invention. This device can be used with any kind of a coiling machine and in fact with a mere feeding machine for the springs, or in fact the springs can be placed on the holders by hand. f

Spring positioning mechanism.

On the shaft 12 I have shown a cam 40 which in'rotating moves a roll 41 in opposition to a spring 42. This roll is located on an arm 43 projecting from va vertical shaft 44 held in brackets 45 on the frame 39. On the upper end this shaft has an arm 46 carrying a tooth 47 at its end. When the cam moves to swing the arms 43 and 46 backwardly to the position shown in Fig. 2, the tooth 47 will move along the shaft 31 of the head 29 and engage one of the coils near the middle of the spring S so as to bring its end up against the conical base 30 so as to insure that the spring shall accurately seat on this cone. This constitutes means for accurately positioning each spring longitudinally.

1t will be observed that the head 29 at this time is in horizontal position and that the next partial rotation of the carrier will move it upwardly from that position. Therefore, thereafter gravity will hold the spring in the position to which it is thrown by the tooth 47. This constitutes the iirst locating action of the machine.

have indicated by the letter A in Fig. 1 the position of one of the heads 29 when it receives a spring from the wire coiling machine and the spring is pushed up upon it as just described. The `carrier then moves J@ of a revolution and this spring comes to the 'position B. Gravity holds it in the proper place on the conical base 30 but it is free to rotate on its axis. Tt will be obvious that although located longitudinally, it has not been located in any definite position circumferentially.

On the shaft 12, at 60, or an exact 1nultiple thereof, from the arm 14, is another double arm carrying a stud 71 operating a Geneva wheel 72 having six radial slots 73. This Geneva wheel is fixed on a shaft 74 below the shaft 12 and provided with a gear 75 meshing with a gear 76 on a shaft 77 parallel with the shaft 12, and behind the shaft 74. The shafts 74 and 77 are carried by brackets on the base 10. On the shaft 77 are two bevel gears 78 meshing with two bevel gears or pinions 79 on two vertical shafts y8O extending nearly to the top of the frame 9. On each of these vertical shafts is a bevel gear 81 meshing with a bevel gear 82 on an inclined shaft 83. This shaft is located at an angle of 60o to the horizontal and is provided at its upper end with a gear 84 which is adapted to mesh with a gear 67 in all positions of a longitudinally reciprocable shaft 65 on which the gear 67 is located.

@n the shaft 12 there is a cam 50. This operates a roll on an arin 51 on a shaft 52 which is provided with an arm 53 substantially at right angles to the arm 51. Connected with this arm 53 is a link 54 which is connected with an arm 55 on a shaft 56 mounted in bracket bearings 57 on the frame opposite sides of the shaft and are not shown4 fifi as of exactly the same construction but they act to turn two levers 60.` These two levers are pivoted on studs 61k near'the top. of the machine frame and are provided with yokes 62 pivoted by vmeans of studs 63 between two spaced discs or plates 64. These two studs 63 are arranged diainetrieally opporsite each other and in this way are pivotally connected with the sliding shaft 65. This shaft ismountedto slide in bearings 66 on the frame and is kprovided with a gear or pinion 67, constantly meshing with the gear 8.4 It is also provided below the lower bearing with a conical head 68 having a Vwing 69 1 radiating therefrom. This shaft 65 is located at an inclination of 600 to the horizontal inthe present case so that it will come intalignment with the axis of oneof the studs 28 of the rotary carrier whenever that carrier is located in stationary position.

The o aeration of these parts of the device is as fol ows: Theshaft 77 is rotated intermittently, one revolution for every six revolutions of the shaft 12, and` therefore the gear 84 is rotated the same way. This causes head 68 is given a rotation and during thisv period ofprotation the arm is moved to bring .the shaft down and the wingy 69 into contact withfthe free end of the spring S on. the head 29 so that the spring will be turned. on its'axis to a position in which its end is at the point at which the wing 69 i' stops-'rotating This is a definite point in the' circumference controlled by the `Geneva motion. Therefore, the spring, having first been registered longitudinally, is now regis` tered cirCiimferentially. This having been accomplished, the head 68 stops rotating, the arm 60=is withdrawn to` pull thishead up out of. theI way, and the spring is left prop'- erly registered on the head 29: `at its posi` tion B.. Now, while'this Geneva motion-is-at restthe otherzon'e starts to work Aand this spring is moved: from the position'B Vto the position C.

Knowing mechanism.

On the shaft 12 is a cam 90. which open ates a bell crank 91 and that by a link 92 swings one of two levers 93 directly. A

link connected with the .ends of the y first lever 93 and link 92 swings the other. lever 93 has a projection 95`eXtending under the butt of thehead 29. Themotion of this lever 93, therefore, pushes this head29 upwardlyalong the stud 28m opposition to its spring 36. This is done to force the springA thereof is a bevel" gear 100 meshing with Each anotherbevel gear 101-y on the knetter shaft; Thedetails' of the knotter kare not` shown herein in full becausethey donotfconstitute a part of this invention, any ordinary kind of a knotter being capable of use, this invention not being restricted to any particular` kind or make'cf knotter. The knotter, however, is'mounted on a frame 102 carried bythe main frame 9 andthe shaftofthe knotter is connected by gears 103 witlrithe knotting head 104l which is provided with a radial slot and geared to rotate twice at each operation. Rotating with the knotter shaft is a disc 105 having a pin 106 thereon which is adapted to be receivedy in anotch 107 ony an arm 108; This arm on oneiside is carried by the shaft 56 which is designed to stop the knotter in a deinite positionand hold it there. The other arm 1081is mounted on a yshaft 109 parallel with theshaftG and operated by it simultaneously by alink 110 connected to arms extendingfromfthe two shafts, one .of thern beingjthe arm 55. The knotter is also provided with a clamping j aw 115 connectedr by arms'116 and links 119 withthelink 110 operatedfrombelow. The knotter slide has a spring 117fto; draw it back toi normal position andan adjust-v able stop 118.

The above described! features of the' knot# ter are not new but it isprovidedlwithpa guide or centering` device whichv comprises a centering block 120-having spiral groove 121 for receiving the first two coils of the spring and provided with two pins 122 for receiving the end of the spring between them; There is an outer liange 123 against whichl the outer coil of: the spring engages andfthese parts are mountedy underneath the knott'er so as to be in line with and receivek the end of the spring when it isbrought into registration with it by rotation of the carrier. An additional shield 124k is` provided for engaging the spring and carrying it overy towardvthe knotter as shown in Fig; 4.

1t will be remembered that the iend. of the'v spring has been previously.` fixed in proper. place circumferentially. Therefore, when theI spring is `forced up, as shown in 6, there will bejust enough of the end ofv the spring projecting from between the two pins 122 to provide enough wire for knotting the end of the spring. f

The knotting action is of the usual character. K stitutes its slide'is 'moved back byflinks 110 and 116 after the spring is centered in the centering device 120 and gripped by the jaw 115 it takes the springwith it and swings the stud 28 on its pivoted pin 27 to the position shown in Figs. 4 and 5. moves past the two pins. This bends the endof the spring overl beyond the pins 122 into a radial position and leaves-it projecting inwardly. At the same time the part of The part'of the knotter wnichcon-V The nose 125 the spring just beyond the pins projects into a slot in the head 104 which is located horizontally by the pin 106 and the notch 107 as shown in Fig. 6. Now, the Geneva motion which has just been described comes into'action and rotates this head 104 two complete revolutions. This twists the projecting end of the wire around the next coil below as shown in Fig. 7, and the knotting action is completed. Now, the link 113 moves back while thejaw 115 and the top of the arm on which the jaw 115 is located engages a projection 141 on the slide and pushes it back. Then the lever 93 moves down to allow the spring 3G to draw the head 29 and spring downwardly to the original position thereof on the carrier. The other Geneva motion now commences its operation and moves the head and spring from the position just described and brings it down into the second'horizontal position l), leaving the knotter located Vin inactive position.

General operation.

On the shaft 12 there is a cam 130 operating a lever 131 directly. This is provided with a flat transferring `plaie 132 having a concave upper edge. When the first Vcarrier comes down to bring the spring to the position D, the transferring` plate 132 is in the position shown in 1; lt, therefore. enters'between two of the convolutions of the coil spring S. As the shaft 12 continues to rotate, the plate 132 is moved over from this position to one in which it is located about half way between thecnds of the spindle 31 of the head 29 on the second carrier which is located in position A. While the lever 131 is in that position the lirst carrier moves around another step, it being understood that each time it moves a new spring is `introduced at the position A and longitudinally located there and the one in advance of it is circumferentially located at position B while the third one is being knotted at the position C. The two positions below are idle ones. As the first carrier moves through this space the second carrier also moves with it to bring the spring with one end knotted from the position A to the position B. 1t will be noted here that the transferring plate 132 performs the function of the locating tooth 47 on the other carrier. It is not necessary to describe the operations on the second carrier for the parts have been referred to in describing the iirst one and the same parts have been given the same numbers, although in some cases the operating connections, especially the links and levers, are not constructed with exactly the same dimensions. ln position B the spring is turned to the proper place. In position at C it is knotted and then brought down to the position D.

In this position a compressing device is used. The shaft 12 is yconnected With a transverse shaft 134 by a pair of bevel gears 133. This shaft 134 `has an arm operating a link 135 which swings a lever 136connected by a link 137 with a slide 138 on ways 139 carried by the frame 9. This slide 138 has a circular head 140 which is perforated to receive the spindles 31 and receives the end ofeach spring S which now has knots in both ends. It presses the spring up against thebase of the spring holding head 29, as shown in F ig. 10, and then moves back out of the way. This simply serves to compress the springs, to bring them back to their original lengths and deliver the springs from the machine in a uniform manner to compensate for any irregularities which may have taken place due to the operations of the ma.- chine or of the coilingmachine. l

After this action takes place the second carrier rotates another step and brings the spring` down to the position E where it is inclined to such an angle that it'will slide off and thus be discharged from the machine. No particular means is shown for .removing the springs as they can be deposited on the floor or in any desired kind of container or conveyor.

It will be understood, of course, that although l Vhave illustrated and described the machine as comprising two carriers, one for knotting each end of a double conicalbedvor cushion spring, the invention is adapted toL be used for knotting either or both ends and can be used for springs of other shapes, sizes and kinds. If only one is to be knotted, the second carrier is thrown out of operation or removed.

- From what has been stated, it will be seen that this is a simple machine for avoiding the handling of springs several times While their vends are being knotted. It is conveniently located adjacent to the ceiling machine to take the springs therefrom automatically and arranged to locate the springs longitudinally and circumferentially so that they will enter the knotter accurately. The springs are delivered from one carrier to the other and finally discharged from the second in an automatic manner. B v deliverinfr in the manner set forth, the unfinished end of the spring is brought to the outer side of the second carrier where it is ready to be operated upon by instrumentalities substantiallyv they same as those that were used to operate upon its other end. When the machine is operating for knotting both ends, there are at all times eight springs carried by the machine and being received, operated upon and delivered, counting the spring sliding olf in the position shown at E. Also, there is delivered one complete spring knotted at both ends each time the main shaft 12 rotates through one revolution and the carriers rotate of a revolution.

Although I have illustrated and described only a single form of the invention, I am aware ofthe fact that modifications can be made therein by any person skilled in the art Without departing from the scope of the invention, as expressed in the claims.- Therefore, I do not Wish to be limited to all the details of construction herein shown and described, but what I claim is l. The combination With a coiling machine for making springs, of a knotting device, a rotary carrier and radial spindles on the yrotary carrier for receiving the springs axially centered thereon from the co'iling machine as they are made and carrying them around the axis of the rotary carrier tothe knotting device.

2. The combination with a spring ceiling machine, of a lrnot'ting device, means for entering the vsprings as they are delivered directly from the ceiling machine and carrying themto the knotting device, and means for 'accurately locating said springs on the carrying device before they are presented to'fthe knotting: `device.

3. The combination With a spring coiling machine, ofa'lrnotting device, a series of spindles for receiving the springs fromthe coiling machine and carrying them tothe knotting device, andmeans'for circumferentially locating said springs'on the spindles.

24. The combination with a coiling machine for producing coiled springs, of a spindle adapted to be located in position'to receive a spring therearound' asV it is delivered from thecOiling machine, means for 'longitudr nally locating the spring accurately on the spindle, and means 'for bodily moving the spindleinto a position for presenting the spring to adevice for performing further actionu'pon the spring.

5. In a device of the character described, the combination of an intermittently rotatable'carrier having a plurality of radiating heads thereon adapted to receive springs, means for longitudinally locating the springson the head While in the position in Whichthe springs are received thereon,

, meansv for turning the carrier, and means for eol performing a lrnotting operation on the end of the spring Whilek still on the carrier.

6. In a machine of the'character described, the' combination With an intermittently rotatable carrier having heads radiating therefrom and Vadapted to receive sprinlgsthereon, means'for moving a spring on ahead longitudinally'to set it firmly against the base ofthe'vhead, and means for thereafter turning V'the 1spring on its oWnaXis to bring its end tov a'definite point.\ around the circum# ference.

7. In amachine'of the character described, the combination with an intermittently movable carrier having heads adaptedlto-'ree cer-re springs thereon, means" for" moving' a spring on a head longitudinallyto "set'rit firmly against the base ofthe headyanda rotatable shaft `located in a position r'in alignment with the spring-holding 'head when the carrier is stopped and'having` a conical head thereon :forfreceiving the lend of a spring and provided Witha Wing'exf tending therefrom 4for vengaging the free end of the spring and turningit.

8. In a machine of the character "de-4 scribed, the combination With an'intermittently rotatable carrier having heads radiating therefrom and adapted to receive springs thereon, a shaft located in a' position'in alignment with the spring-holding "head When the carrier is stoppedl and having a conical head tliereonforreceiving the'end of a spring and provided with' awing eX- tending therefrom for engaging tlie'ffr'eeend ofthe spr-ing,` means for constantly rotating said shaft, and means for'fintermittently moving said shaft in any axial vdirection toward t-he'spring supporting head.

9. In a machine f ofthe charac-ter described, the combination Withk an intermit-4 tently 'rotatable carrier having heads `radiating therefrom and adapted to receive springs in radial position thereon, and means'for turning each springen its own* axis tobring its end tov a definite point aroundthe circumference.

10. In a machine of the character described, the combination With an intermit`v tently rotatable cairier'having heads'lradiating therefrom and adaptedto-receiv'e springs' thereon, means for moving a springi'onwa head longitudinallyto set it firmlyVY against the base of the head, meansfor thereafter turning the' spring onits'wn axis ton bring its end to a definite point `around the cir-- cumference, and meansrfor thereafter bending'said end around the'next Wire ofthe spring to Aiinishthe end of the spring.

ll. In a machine ofthe character 'de-v scribed, the combinationof'an intermittently movable carrier having aplurality of heads thereon for receiving springs, a knot? ting device, and means 4wherebyl when 'the carrier moves to a'positi/on to bring apre'viously located spring into alignment With the knotting device the head on Which At-he spring is located Will be moved'o'utwardly toward thelniotting device.

l2. In a machine ofthe character 'de' scribed, the combinationl of van intermit-k tently rotatablefcarrier having heads' vthereon for receiving springs, 'means' for positioning each spring on itsfhead, a kntting device comprising a slide movable' back`v Wardly to take the spring into a positiont'o' be knotted, theheads on which theffsprings are mounted being capable of swingingf'to enable them to movewiththe' knottingfdevice, and meansfwherebyfyvhen the carrier turns Ato position *tei bringaprimari-9115115?"b :13. In a machine of the character de-y scribed, the combination of an intermittently rotatable carrier having a plurality7 of heads thereon for receiving springs, a knotting device having a guide thereon for centering the spring properly with relation thereto, and means whereby when the carrier turns to a position to bring a spring into proper position the head on iwhich the spring is located will be moved in an axial direction toward the knotting device.

14. In a machine of the character described, the combination of an intermittently rotatable carrier having a series of radiating heads ,adapted to receive springs and a` knotting device located adjacent to the carrier, said heads being pivoted on the carrier on an axis to enable them to swing toward the knotting device and being radially movable to permit the spring thereon to be moved into4 the lnotting device.

15. In a machine of the character described, the combination of an intermittently rotatable carrier having a series of radiating heads adapted to receive springs, a knotting device located adjacent the carrier, said heads being pivoted on the car-. rier on an axis to enable them to move toward the knotting device, and means for automatically moving ysaid heads radially toward the knottingdevice in turn, said knot-ting device having means for ymoving the heads over on theirl lpivots after the7 springs are registered therewith.

16. In a machine of the character described, the combination of a pair of carriers each having a series of heads thereon, one of said carriers being adapted to receive springs one at a time'on said heads on one side of the machine, means for intermittently moving said carriers to advance the heads one ata time to receiving position, means for positioning the springs and knotting their ends, and means for transferring a spring from a head onthe first carrier to a head on the second carrier.

17. In a machine of the character described, the combination of a pair of rotatably mounted carriers, means for simultaneously and intermittently rotating both of said carriers, heads on said carriers for receiving and holding springs to be voperated upon, means connected with each car rier for knotting `the end of one of the springs carried thereby, and means for transferring the springs fromV onecarrier to the other between two of their intermittent motions.

18. In ka machineof the character described, the combination of a pair of carriers each having a series of heads thereon carrier being in aiigninent with the last named position ot the tiist carrier, and means for transferring a spring trom a head on the lirst carrier to a head on the second carrier. y'

19. In a machine of the character'described, the vcombination ot a plurality ot carriers each having a series of heads thereon, one of said carriers being adapted to receive springs one at a time on said heads on one side of the machine, means for intermittently moving said carriers to advance the heads one at a time to receiving position, means arranged adjacent to one of theA carriers tor positioning rthe springs and knotting them, means for transferring a spring from a head on the first carrier to a head on the second carrier, and means con-,

nected with the second carrier for knotting another part of a spring carried thereby.

20. In a machine of the character described, the combination ot a pair of rotatably mounted carriers, means :tor simultane ously and intermittently rotating both of said carriers, heads on said carriers for receiving and holding springs to be operated upon, means connected with each carrier for knotting the end ot one of the springs carried thereby, and an oscillatable lever having a plate adapted to move from a position under a head on the first carrier to a position in alignment therewith on thesecond carrier, the springs on the first carrier being broughtY into engagement with said plate by the rotation of the carrier.A

21. In a machine of the character vdescribed, the combination of a pair of car-` riers each having a series of heads thereon, one of said carriers being adapted to receive springs ony said heads, means for in-y arranged substantially in radial position, one of said carriers being adapted to re ceive springs one at a time on said heads on one side of the machine, means for simultaneously and intermittently rotating said carriers to advance the hea-ds one at a time to receiving position, means arranged about one of the carriers for positioning the springs and knotting their ends, whereby after that carrier has rotated to a denite part of the revolution it will have a spring located on one of the heads with its outer end knotted, the receiving posi-tion of the other carrier being in alignment with the last named position of the first carrier, means adjacent the second carrier for knotting the other end of a spring carried thereby, and means for automatically compressing each spring on the second carrier after it is knotted.

23. In a machine of the character described, the combination of a pair of carriers each having a series of heads thereon, one of said carriers being adapted to receive springs one at a time on said heads on one side of the machine., meansf for intermittently rotating said carriers to advance the heads one at a time to receivingposition, means a1'- ranged about one of the carriers tonknotting the springs at one end, and means connected with the second carrier for knotting the other end of each spring carried thereby, the second carrier being adapted to discharge the springs therefrom by rotating around to a position in which the respective heads are located at an inclination downwardly.

In testimony whereof I have hereunto affixed my signature.

FRANK H. SDEEPER. 

